Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

To the class members how can we provide security?

Aspire,

1 5311

What is the Difference between Final Class && Abstract Class?

HCL,

1144

can used Protected Class outside Function.?

HCL,

1158

why Interface used?

HCL,

1034

What happens if an exception is throws from an object's destructor?

Amazon,

1097

What is reflexive association?

Infogain,

1 1876

What is the difference between public, private, protected, and friend access?

Amazon,

1104

For class CFoo { }; what default methods will the compiler generate for you>?

Amazon,

1116

What do you meant by active and passive objects?

Wipro,

1143

What is an accessor?

BirlaSoft,

1 1769

What is a Null object?

Wipro,

1 1726

What is a "pure virtual" member function?

Amazon,

1148

What is a modifier?

1 1601

What happens if an exception is throws from an object's constructor?

Amazon,

1179

What is static class

EDS,

1165

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Un-Answered Questions { Core Java }

Given a singly linked list, find the middle of the list in a single traversal without using temporary variable.

1103

Explain the selection sort algorithm?

1118

What is the list interface?

1131

Compare Mutex and Semaphore in java.

1055

How do you empty a list in java?

1020

Give few examples of final classes defined in Java API?

1285

What are the four pillars of java?

1269

Discuss different types of errors that generally occur while programming.

1090

How to compare strings in java?

1103

How many bits is a string in java?

1078

What is stream api in java8?

1279

What are register variables what are the advantages?

940

What's the difference between int and integer in java?

1234

Does java have a compiler?

1091

How to display all the prime numbers between 1 and n (n is the number, get the input from user)

1024

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